1.

Select the correct statement about Na_(2)S_(2)O_(3).5H_(2)O?

Answer»

It is also called as hypo
It is used in PHOTOGRAPHY to form COMPLEX with AgBr
It can be used as antichior
It is used to REMOVE stains of `I_(2)`

Solution :`Na_(2)S_(2)O_(3)` is used in the bleaching industry to destroyany excess chlorine on fabrics. Then it is used as antichlor. Iodineoxidisessodium thio sulphate to SODIUM tetrathionate
`2Na_(2)S_(2)O_(3)+I_(2) to Na_(2)S_(4)O_(6)+2NaI`


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